Sunroom

My wife hired a contractor to add a sunroom to the back of our house. The new sunroom roof overlapped our old roof, covering up the vent to the kitchen sink. The workers never extended the vent through the new roof. what problems can this cause?

So people call the vent pipe, "the stink pipe". The vent does more than just allow sewer gas to be vented to the outside, but in this case, that may be enough reason to call the contractor back and make him do the job right. This was a very unprofessional job to say the least!